JPS6010469B2 - Multi-frequency signal transmission control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a multi-frequency signal transmission control system, particularly a number nail, a memory circuit for storing the number set in the number register, and a dial pulse transmission circuit for transmitting the number as a dial pulse. ,
The present invention relates to a PB signal transmission control method in a telephone equipped with a PB signal transmission circuit that transmits the digits as a multi-frequency signal (hereinafter referred to as PB signal).

In recent years, various attempts have been made to improve the functionality of telephones, and by operating the same number pin, it has become possible to switch between dialing signals (dial pulse type or PB signal type), and to send out dial signals once selected. Attempts have been made to add new functions such as automatic re-transmission by operating a dial nail.

FIG. 1 is a diagram showing a conventional PB signal transmission control system for this type of telephone.

In FIG. 1, the number to be sent from the telephone is set to a single digit by a digit DB in either the dial pulse type or the PB signal type. The numbers ○I set by the number wholesaler DB are sequentially stored in the memory circuit MEM. When the number DI is sent by dial pulse DP, the number DI stored in the memory circuit MEM is sent to the single digit holding circuit L.
and transmitted to the dial pulse sending circuit DPS. The dial pulse sending circuit DPS receives the received number D2.
is converted into a dial pulse DP at a predetermined speed (for example, 10 pulses per second) and a predetermined make rate (for example, 33%) and sent. When the dial pulse DP for one digit has been sent out, the dial pulse transmitter circuit DPS waits for a predetermined pause time (
After a minimum pause (for example, 800 milliseconds), the next digit D2 is read out from the memory circuit M to the holding circuit L and is converted to a dial pulse DP as described above and sent out. Even after the dial pulse DP corresponding to is sent out, the number DI is stored in the memory circuit M, so by operating the re-dial button (not shown),
In the same process as described above, the digit D is converted into a dial pulse DP and retransmitted. On the other hand, when sending the number DI set in the number wholesaler DB using the PB signal PB, the number D
I is stored in the memory circuit MEM and simultaneously transmitted to the PB bridge number sending circuit PBS each time the number nail DB is set.
It is converted into a PB signal PB and sent out. When the redial button is operated, the sending control circuit PBC is activated and the number DI stored in the memory circuit MEM is displayed in the single digit holding circuit 1 (number D2), and the PB bond number is sent out. The PB signal sending circuit PBS transmits the PB signal PB corresponding to the received number D2 to the sending control unit P8.
The specified time (for example, 66 milliseconds) is sent from C.
When the PB signal for one digit has been sent out, the sending control circuit P8C
After a predetermined pause time (for example, 66 milliseconds) has elapsed, the next digit ○2 is read from the memory circuit M position M to the holding circuit L, and is converted into the PB signal PB and sent out as described above. As is clear from the explanation of ``In a certain PB signal sending control system, when re-dial is sent by the PB signal PB, the sending time and pause time of the PB signal PB are specified, and the memory circuit for the number D2 M old M A dedicated transmission control circuit PBC is provided for sequential transmission control, which may impair the economic efficiency of the telephone.

An object of the present invention is to eliminate the drawbacks of the conventional PB signal transmission control system as described above, and to realize a means for economically transmitting re-dials using a PB signal.

The object of the present invention is to provide a number spade, a memory circuit that stores the numbers set in the number register, a dial pulse sending circuit that sends out the numbers as dial pulses, and a multi-frequency signal that sends out the numbers as multi-frequency signals. In a telephone equipped with a signal sending circuit and a re-dial sword that re-sends the numbers stored in the previous record as dial pulses or multi-frequency signals, the dial pulse sending circuit is provided with a sending time corresponding to one dial pulse in the dial information. means for generating information, and means for setting the sending time information generated by the means to the multi-frequency signal sending circuit. This is achieved by generating a time corresponding to one dial pulse in a circuit and setting it in the multi-frequency bond number sending circuit as the sending time of a multi-frequency signal corresponding to the stored number. An embodiment will be explained with reference to FIGS. 2 and 3.

FIG. 2 is a diagram showing a PB signal transmission control system according to an embodiment of the present invention, and FIG. 3 is a diagram showing an example of the dial pulse transmission circuit in FIG. 2. The difference between FIG. 2 and FIG. 1 is that the sending time is controlled by the dial pulse sending circuit D' instead of the dedicated sending control circuit PBC (see FIG. 1) when redialing is sent using the PB signal. There is ~
Other parts that are the same as those in FIG. 1 are designated by the same reference numerals.
In Figure 2 ~ Number D set by number button DB]
directly or by re-dialing "Dial Pulse DP"
The process of converting the digit ○I to PB signal PB and sending it out is the same as in the diagram.Also, when the number ○I is directly converted to the PB signal PB and sent out, the same process as in the quantity diagram is carried out.
When sending out the signal PB, the PB switching signal S is input to the dial pulse sending circuit DPS'. When transmitting the re-dial PB signal PB in the state of is read out to the single digit holding circuit L (number D2)
The PB signal sending circuit P has already been transmitted. At the same time, the dial pulse sending circuit DPS' sends out 1 - dial pulses at a rate of 20 pulses per second, and transmits the resulting switching signal MU with a duration of 66 milliseconds to the PB signal sending circuit PBS. The PB shoulder number sending circuit P' sends out the PB signal PB corresponding to the received digit D2 while receiving the switching signal MU.When the sending of the PB signal PB for one digit is completed, the dial pulse sending circuit DPS' sends out the PB signal PB corresponding to the received digit D2. After a predetermined pause time (for example, 66 milliseconds) has elapsed, the next digit D2 is outputted from the memory circuit MEM to the holding circuit L, and is converted to the PB signal PB and sent out as described above. The sending process of dial pulse sending circuit Dfalse' when sending out redial by signal PB will be explained with reference to FIG. 3. In FIG.
When P is sent, the logical value is set to 1. Therefore, the binary displayed number D2 transmitted from the holding circuit L is input to the counting circuit PC via the gates Gi to G4.
The counting circuit PC activates the pulse generating circuit PG to send out dial pulses DP at a predetermined speed and make rate. The pulse generating circuit FG advances the counting circuit PC one step each time it sends out one dial pulse DP. Counting circuit P
When C advances by the input number ○2, it stops the pulse generation circuit PG and generates a dial pulse D corresponding to the number D2.
Finish sending out P. Next, when the PB signal PB is sent out, the PB switching signals SI to S5 are set to a logical value of 0. As a result, the number 1 is always set in the counting circuit PC by the PB switching signals SI to S4, regardless of the number D2 inputted from the holding circuit L. Further, the PB switching signal S5 sets the pulse generating circuit PG to a dial pulse sending mode of 20 pulses per second. Therefore, when re-dialing is performed using the PB signal PB, the dial pulse sending circuit DPS' performs an operation of sending out one dial pulse DP of 20 pulses per second. At this time, the pulse generation circuit PG starts sending out 1/2 pulse (approximately 16 milliseconds) earlier than the point at which dial pulse DP starts sending out, and 1'2 pulse (approximately 16 milliseconds) from the point at which dial pulse DP ends sending out. A switching signal MU that continues until after is sent out. Since the pulse break time of dial pulse DP of 20 pulses per second is 33 milliseconds,
The switching signal MU when sending out one dial pulse DP lasts about 66 milliseconds. By transmitting the switching signal MU to the PB signal sending circuit P, the song B signal PB is output for a predetermined period of time.
is sent. As is clear from the above explanation, according to the Honbi embodiment, the dial pulse sending circuit D' to which the PB switching signal S is inputted, outputs the dial pulse D of 20 pulses per second.
By the operation of sending out the number 1 at P, it is possible to supply the switching signal MU with a duration of about 66 milliseconds, which is necessary for the PB signal sending circuit PBS at the time of redialing.

Note that FIGS. 2 and 3 are only one embodiment of the present invention, and for example, the configuration of the dial pulse sending circuit D' is not limited to that shown in FIG. Although many modifications may be considered, the effects of the present invention remain the same in any case.

As described above, according to the present invention, in the case of transmitting redial by PB signal in the telephone, by using the dial pulse transmission circuit, it is possible to control the PB signal transmission time without using a dedicated transmission control circuit. This will promote economicalization of the telephone.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of a conventional multi-frequency signal sending control method, FIG. 2 is a diagram showing a multi-frequency signal sending control method according to an embodiment of the present invention, and FIG. 3 is a diagram showing a dial pulse sending control method in FIG. 2. FIG. 3 is a diagram showing an example of a circuit. In the figure, DB is a number spade, MEM is a memory circuit, L is a holding circuit, DPS and DPS' are dial pulse sending circuits, PBS is a PB signal sending circuit, PBC is a sending control circuit, PC is a counting circuit, and PG is a pulse generating circuit. Circulation, GI to G
4 is a gate, DI and D2 are numbers, DP is a dial pulse, PB is a PB signal, S and SI to S5 are PB switching signals, and M peak switching signals. I, Rokuhai Figure 2 * Figure 3

Claims (1)

[Claims] 1. A numeric button, a memory circuit that stores the number set to the numeric button, a dial pulse sending circuit that sends out the number as a dial pulse, and a multifrequency signal sending circuit that sends out the number as a multifrequency signal. In a telephone equipped with a re-dial button for re-sending the stored digits as a dial pulse or a multi-frequency signal, means for causing the dial pulse sending circuit to generate sending time information corresponding to one dial pulse in dial information; , means for setting the transmission time information generated by the means to the multi-frequency signal transmission circuit,
When retransmitting the stored digits using a multi-frequency signal, the dial pulse sending circuit generates a time corresponding to one dial pulse, and the multi-frequency signal is used as the transmission time of the multi-frequency signal corresponding to the stored digits. A multi-frequency signal transmission control method characterized by being set in a signal transmission circuit.